• Country
• Bulgaria

• Manufacturer / Brand
• Resprom; Veliko Tarnovo

• Year
• 1970 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 277730

Click on the schematic thumbnail to request the schematic as a free document.

• Number of Transistors
• 6

• Semiconductors
• SFT319 SFT319 SFT319 SFT353 SFT323 SFT323

• Main principle
• Superheterodyne (common); ZF/IF 455 kHz

• Wave bands
• Broadcast and Short Wave (SW).

• Power type and voltage
• Dry Batteries / 3 x 1.5 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 6.5 inch = 16.5 cm

• Power out
• 0.1 W (unknown quality)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Echo-2 - Resprom; Veliko Tarnovo

• Dimensions (WHD)
• 136 x 86 x 36 mm / 5.4 x 3.4 x 1.4 inch

• Net weight (2.2 lb = 1 kg)
• 0.380 kg / 0 lb 13.4 oz (0.837 lb)

• Mentioned in
• -- Original-techn. papers.

• Author
• Model page created by a member from SK. See "Data change" for further contributors.

• Other Models

• Here you find 36 models, 36 with images and 15 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Resprom; Veliko Tarnovo